Demon Hunter is <3 Sadly can't do video due to horrendous uploading speed
Dunno why, but double jumping and gliding allows demon hunters to infernal strike through walls they otherwise wouldn't be able to... as shown in these gifs (gyazo video replacement hehe)
^^^^^^ doesn't work normally
^^^^^^ you get past the wall with double jump, glide, then infernal strike.
^^^^^^ this is where you actually jump out. There's water extending all the way up to suramar surface. When you get up, do NOT jump above the surface, you might randomly die. Swim for land instead.
^^^^^^ this is the route I swam to get up on land safely without dying, not sure how much it matters, but I kept dying trying to jump above the water